Blotzmann and Saha Equations Astrophysics Astrophysics Basics Blotzmann and Saha Equations Questions Mars has an average surface temperature of about 200K. Pluto has an average surface temperature of about 40K. Which planet emits more energy per square meter of surface area per second? By a factor of how much? Astrophysics Basics View all chapters The Electromagnetic Spectrum Blackbody Radiation Luminosity, Effective Temperature, Flux and Magnitudes Blotzmann and Saha Equations Spectral Classification of Stars The Hertzsprung-Russell Diagram Prev Next